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BMR Calculator

years
ft
in
kg

Basal Metabolic Rate (BMR)

1,649

Calories/day

Disclaimer: This information is for educational purposes only. Always consult with a qualified healthcare provider for personalized medical advice regarding your health.

BMR Calculator — Overview

The Basal Metabolic Rate (BMR) Calculator helps you estimate the number of calories your body needs at rest to maintain basic functions such as breathing, circulation, digestion, and cell production.


Understanding your BMR is an important step in weight management, fitness planning, and nutrition tracking. By knowing how many calories your body burns at rest, you can adjust your diet and exercise routine to achieve your health goals.

How is it calculated?

The most widely used method is the Mifflin-St Jeor Equation, which factors in gender, age, weight, and height:


For Men:

BMR = (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) + 5

For Women:

BMR = (10 × weight in kg) + (6.25 × height in cm) – (5 × age in years) – 161


Once your BMR is calculated, you can estimate your Total Daily Energy Expenditure (TDEE) by multiplying BMR with your activity level.

Frequently Asked Questions

BMR (Basal Metabolic Rate) and RMR (Resting Metabolic Rate) are very similar and often used interchangeably. BMR is a more restrictive measurement taken in a lab setting after a full night's sleep and fasting. RMR is less restrictive and is a more practical estimate of your resting calorie burn.

Building more muscle mass through strength training is the most effective way to increase your BMR. Muscle tissue is more metabolically active than fat tissue, meaning it burns more calories at rest.

Knowing your BMR helps you: Plan calorie intake for weight loss, gain, or maintenance. Avoid extreme diets by understanding your minimum energy needs. Improve accuracy in fitness apps and calorie trackers.

Yes. BMR decreases with age because of muscle loss and hormonal changes. That’s why maintaining muscle mass becomes more important as you get older.

Absolutely. Factors like gender, age, height, muscle mass, and genetics all influence BMR.

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